Vacuum-cleaner hose with electrical conductors

Abstract

A vacuum-cleaner hose with electrical conductors comprises a hose made of a soft thermoplastic material. A support carrier, made out of a harder material than the material of the hose, is attached at one end of the hose for electrical slip rings. One of the electrical conductors is in each case connected to the slip rings. An end socket is inserted into the end of the hose exhibiting the support carrier, is connected to the support carrier, and is made of the same material as the support carrier. The support carrier is made of a socket ring, provided with at least one slip ring, and a sleeve, disposed in front of the socket ring. The sleeve is provided with a continuous axial slot and includes two additional slip rings, and the sleeve is connected form-matchingly to the socket ring and to the end socket. At least one thread turn is formed at an inner jacket face of the sleeve and forms a counter thread for the wave troughs and the wave crests of the hose. Ends of the electrical conductors are guided out of a protective casing, disposed in the hose, first into the axial slot of the sleeve and then to the slip rings, coordinated to the ends of the electrical conductors and openly disposed inside the axial slot.

What is claimed as new and desired to be protected by letters patent is set forth in the appended claims: 
     
       1. A vacuum-cleaner hose with electrical conductors, comprising a hose made of a soft thermoplastic material and exhibiting spiral, screw-like wave crests and wave troughs at an outer face;   a support carrier attached at one end of the hose, wherein the support carrier is made out of a harder material than the material of the hose, and wherein the support carrier is formed of a socket ring and a sleeve disposed in front of the socket ring;   a continuous axial slot provided at the sleeve;   at least one slip ring placed onto the socket ring, and two additional slip rings placed onto the sleeve;   an end socket inserted into the one end of the hose exhibiting the support carrier, wherein the end socket is connected to the support carrier and is made of the same material as the support carrier, and wherein the sleeve is connected on the one hand form-matchingly to the socket ring and on the other hand form-matchingly to the end socket;   at least one thread turn formed at an inner jacket face of the sleeve, wherein the thread turn forms a counter thread for the wave troughs and the wave crests of the hose;   electrical conductors, wherein one of the electrical conductors is in each case connected to one slip ring;   a protective casing disposed in the hose, wherein ends of the electrical conductors are guided out of the protective casing, first into the axial slot of the sleeve and then to the slip rings, coordinated to the ends of the electrical conductors and openly disposed inside the axial slot.     
     
     
       2. The vacuum-cleaner hose according to claim 1, further comprising an outer bead formed at the socket ring;   a rear inner groove disposed at the sleeve;   an annular collar formed at an outer face of the end socket;   a front inner groove disposed at the sleeve, wherein the outer bead engages and grips into the rear inner groove of the sleeve, and the annular collar engages and grips into the front inner groove of the sleeve for a form-matching connection of the sleeve to the socket ring and to the end socket.   
     
     
       3. The vacuum-cleaner hose according to claim 2, further comprising a slot disposed at the end socket, wherein the slot of the end socket starts at a rear end of the end socket and extends up to the annular collar;   a tubular formation formed by flanks of the slot of the end socket for receiving coordinated ends of the protective casing, wherein the formation is open toward an open end of the slot of the end socket and closed at an opposite end, and wherein the slot of the end socket is aligned with the axial slot of the sleeve in its deployed position.   
     
     
       4. The vacuum-cleaner hose according to claim 3, further comprising a formed-on moving joint subdividing the sleeve into two equal shell halves, wherein free edges of the shell halves form flanks of the axial slot.   
     
     
       5. A vacuum-cleaner hose with electrical conductors, wherein a) a hose is made of a soft thermoplastic material and exhibits at an outer face spiral, screw-like wave crests and wave troughs, and wherein a support carrier, made out of a harder material than the material of the hose, is attached at one end of the hose for electrical slip rings, wherein one of the electrical conductors is in each case connected to the slip rings;   b) an end socket is inserted into the end of the hose exhibiting the support carrier, wherein the end socket is connected to the support carrier and is made of the same material as the support carrier, wherein   c) the support carrier is made of a socket ring (2a), provided with at least one slip ring (3), and a sleeve (2b), disposed in front of the socket ring (2a), wherein the sleeve (2b) is provided with a continuous axial slot (6) and includes two additional slip rings (3), and wherein the sleeve (2b) is connected on the one hand form-matchingly to the socket ring (2a) and on the other hand form-matchingly to the end socket (5);   d) at least one thread turn (7) is formed at an inner jacket face of the sleeve (2b), wherein the thread turn (7) forms a counter thread for the wave troughs (1a) and the wave crests (1b) of the hose (1);   e) ends of the electrical conductors (4) are guided out of a protective casing (8), disposed in the hose (1), first into the axial slot (6) of the sleeve (2b) and then to the slip rings (3), coordinated to the ends of the electrical conductors (4) and openly disposed inside the axial slot (6).   
     
     
       6. The vacuum-cleaner hose according to claim 5, wherein an outer bead (2c), formed at the socket ring (2a), engages and grips into a rear inner groove (2d) of the sleeve (2b) and an annular collar (5a), formed at an outer jacket surface of the end socket (5), engages and grips into a front inner groove (2e) of the sleeve (2b) for a form-matching connection of the sleeve (2b) to the socket ring (2a) and to the end socket (5).   
     
     
       7. The vacuum-cleaner hose according to claim 6, wherein the end socket (5) includes a slot (5b), starting at a rear end of the end socket (5) and extending up to the annular collar (5a), wherein flanks of the slot (5b) pass over into a tubular formation (5d), formed for receiving coordinated ends of the protective casing (8), wherein the formation (5d) is open toward an open end of the slot (5b) and closed at an opposite end, and wherein the slot (5b) is aligned with the axial slot (6) of the sleeve (2b) in its deployed position.   
     
     
       8. The vacuum-cleaner hose according to claim 7, wherein a formed-on moving joint (2f) subdivides the sleeve (2b) into two equal shell halves (2g), wherein free edges of the shell halves (2g) form flanks of the axial slot (6).